<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
1111
</body>
<script>
    alert(123)
    var user = {
        name: "tom",
        age: 20,
        eat: function () {
            alert("yongshan")
        }
    }
    var jsonc = '{"name":"tom","age":20,"add":["a","b"]}'
    var obj = JSON.parse(jsonc);
    alert(obj.age);
</script>
</html>